MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 35a4bc4b2f81c2e4ddeb9655e4d8141649bb5ab42a7014d46bea72fe9e61ab78. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


GCleaner


Vendor detections: 13


Intelligence 13 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 35a4bc4b2f81c2e4ddeb9655e4d8141649bb5ab42a7014d46bea72fe9e61ab78
SHA3-384 hash: 47f7f6cf74c114dd59c2f8141db8f320d2c5c49e4d3b06087cc38e65a48fc4ba681270447dc7bf8ddffd82b18fbf502c
SHA1 hash: 294ee86e7e75c69e6591ac83c357a5749e0c62c7
MD5 hash: 4d0d9540d30d01d99421c519ccfd794a
humanhash: video-snake-massachusetts-carolina
File name:SecuriteInfo.com.W32.Kryptik.HCOV.tr.31080.6167
Download: download sample
Signature GCleaner
Create hunting rule
File size:285'696 bytes
First seen:2024-05-18 00:22:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 34c14f6102c8eb3fdd08062989bd6b48 (1 x GCleaner)
ssdeep 3072:NM6/bHxVX56fXJEn3a83qHC29tJdafy5zM3rNVzicU65y9qkfK5yyNT2M/:NM6L56fZEn3aVC2NdQy5Y3rDX3kRm
Threatray 8 similar samples on MalwareBazaar
TLSH T10254D01EA7ACEC35C806467D8E3BC6E4662EBC20CE1DE7537255A76F0D722E0D622711
TrID 39.5% (.EXE) InstallShield setup (43053/19/16)
28.6% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
9.6% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 8800c8c8d4c871b0 (1 x GCleaner)
Reporter SecuriteInfoCom
Tags:exe gcleaner

Intelligence

File Origin
# of uploads :
1
# of downloads :
415
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
35a4bc4b2f81c2e4ddeb9655e4d8141649bb5ab42a7014d46bea72fe9e61ab78.exe
Verdict:
Malicious activity
Analysis date:
2024-05-18 00:22:48 UTC
Tags:
gcleaner loader
Link:
https://app.any.run/tasks/0b359736-2432-48cd-b354-468d6b18a371

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.W32.Kryptik.HCOV.tr.31080.6167.UNOFFICIAL
Create hunting rule

Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Searching for the window
Using the Windows Management Instrumentation requests
Connection attempt to an infection source
Launching a tool to kill processes
Sending an HTTP GET request to an infection source
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/35a4bc4b2f81c2e4ddeb9655e4d8141649bb5ab42a7014d46bea72fe9e61ab78
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fce957d0-b95b-493c-bba5-5bb91c235252
Result
Threat name:
GCleaner, Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1443580
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Yara detected GCleaner
Yara detected Nymaim
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1443580 Sample: SecuriteInfo.com.W32.Krypti... Startdate: 18/05/2024 Architecture: WINDOWS Score: 100 25 Multi AV Scanner detection for domain / URL 2->25 27 Found malware configuration 2->27 29 Malicious sample detected (through community Yara rule) 2->29 31 6 other signatures 2->31 7 SecuriteInfo.com.W32.Kryptik.HCOV.tr.31080.6167.exe 14 2->7         started        process3 dnsIp4 23 185.172.128.90, 49730, 80 NADYMSS-ASRU Russian Federation 7->23 33 Detected unpacking (changes PE section rights) 7->33 35 Detected unpacking (overwrites its own PE header) 7->35 11 cmd.exe 7->11         started        13 WerFault.exe 16 7->13         started        15 WerFault.exe 16 7->15         started        17 8 other processes 7->17 signatures5 process6 process7 19 conhost.exe 11->19         started        21 taskkill.exe 11->21         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/35a4bc4b2f81c2e4ddeb9655e4d8141649bb5ab42a7014d46bea72fe9e61ab78
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/35a4bc4b2f81c2e4ddeb9655e4d8141649bb5ab42a7014d46bea72fe9e61ab78/
Threat name:
Win32.Trojan.Amadey
Create hunting rule
Status:
Malicious
First seen:
2024-05-17 22:04:49 UTC
File Type:
PE (Exe)
Extracted files:
31
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=gwslyszpqhbojxplszk6jwaucze3wwvufjybjvdl5jzp5htbvn4a._file
Verdict:
malicious
Similar samples:
35a4bc4b2f81c2e4ddeb9655e4d8141649bb5ab42a7014d46bea72fe9e61ab78
GCleaner
8dc9aa64c0581c585367422a8374a1e38978bdcdd450226811edcf177d4062ff
GCleaner
feeaa82d4ae6ec1cc5539b428d0358aba8e372a722ee95c9b4450be36d39f33d
GCleaner
Result
Malware family:
gcleaner
Create hunting rule
Score:
  10/10
Tags:
family:gcleaner loader
Link:
https://tria.ge/reports/240518-apgb5sah4z/
Behaviour
Kills process with taskkill
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Checks computer location settings
Deletes itself
GCleaner
Malware Config
C2 Extraction:
185.172.128.90
5.42.64.56
5.42.65.64
Unpacked files
SH256 hash:
d30014c5b8ee418b092523a38e1fa8def881cb489522758d407cec4a4c28b129
MD5 hash:
fc9b04fa7818f3ef64f0083a7cbc001b
SHA1 hash:
5b5d573f31ba9f059af39b6e4caa0518aaca3c2e
Detections:
GCleaner
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/de2d5e2e-001f-4f1e-9fc8-4411779a1c5b/
Parent samples :
feeaa82d4ae6ec1cc5539b428d0358aba8e372a722ee95c9b4450be36d39f33d
8dc9aa64c0581c585367422a8374a1e38978bdcdd450226811edcf177d4062ff
35a4bc4b2f81c2e4ddeb9655e4d8141649bb5ab42a7014d46bea72fe9e61ab78
SH256 hash:
35a4bc4b2f81c2e4ddeb9655e4d8141649bb5ab42a7014d46bea72fe9e61ab78
MD5 hash:
4d0d9540d30d01d99421c519ccfd794a
SHA1 hash:
294ee86e7e75c69e6591ac83c357a5749e0c62c7
Link:
https://www.unpac.me/results/de2d5e2e-001f-4f1e-9fc8-4411779a1c5b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/35a4bc4b2f81c2e4ddeb9655e4d8141649bb5ab42a7014d46bea72fe9e61ab78

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:Windows_Trojan_Generic_2993e5a5
Create hunting rule
Author:Elastic Security
Rule name:win_gcleaner_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.gcleaner.

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

GCleaner

Executable exe 35a4bc4b2f81c2e4ddeb9655e4d8141649bb5ab42a7014d46bea72fe9e61ab78

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2850390/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2850450/
  
URLhaus
https://urlhaus.abuse.ch/url/2850421/
  
URLhaus
https://urlhaus.abuse.ch/url/2850423/
  
URLhaus
https://urlhaus.abuse.ch/url/2850419/
  
URLhaus
https://urlhaus.abuse.ch/url/2853388/
  
URLhaus
https://urlhaus.abuse.ch/url/2850338/
  
URLhaus
https://urlhaus.abuse.ch/url/2852418/
  
URLhaus
https://urlhaus.abuse.ch/url/2850449/
  
URLhaus
https://urlhaus.abuse.ch/url/2850340/
  
URLhaus
https://urlhaus.abuse.ch/url/2850334/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsADVAPI32.dll::OpenThreadToken
KERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::SetFirmwareEnvironmentVariableA
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoA
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::FlushConsoleInputBuffer
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::WriteConsoleA
KERNEL32.dll::SetConsoleTitleA
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasesW
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA
KERNEL32.dll::GetFileAttributesA
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
WIN_TIME_APICan Modify TimeKERNEL32.dll::SetSystemTime

Comments